Priming device



P.- 1. McINTYRE.

PRIMING DEVICE.-

APPLICATION FILED OCT. 8, 1919.

Patented May 18, 1920.

' In ventor.

Attorney.

UNITED STATES PATENT OFFICE.

PATRICK J. MCINTYRE, OF AUBURN, RHODE' ISLAND, ASSIGNOR TO UNITED WIREAND I SUPPLY COMPANY, A CORPORATION OF RHODE ISLAND.

PRIMING DEVICE.

Application filed October 8, 1919.

T all whom it may concern Be it known that I, PATRICK J. MoIN- TYRE, acitizen of the United States, residing at Auburn, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Priming Devices, of which the following is aspecification.

My invention relates to priming devices for use on internal combustionengines.

The essential objects of my invention are to render the device availablefor use upon V type motor without any danger of spilling the contents ofthe cup and likewise avoiding an inclination of the handle toward theoperator; to insure a thorough locking of the retaining plate or washerand the consequent security of the assembled parts; to insurecleanliness and to improve the appearance of the structure.

To the above ends essentially my invention consists of such parts andsuch combinations of parts as fall within the scope of the appendedclaims.

In the accompanying drawings which form a part of this specification-Figures 1 and 2 are side elevations of my novel device showing thehandle respectively elevated and depressed; and in the former a portionof a V cylinder,

Fig. 3, a vertical central section of the same,

Fig. 4, an enlarged similar section of a portion of the same,

Fig. 5, an end elevation of the plug, and

Figs. 6 and 7, details views of the retaining plate and cap.

Like reference characters indicate like parts throughout the views.

In detail 9 is the body of the primer provided with the usual terminalscrew thread 10 for engagement in the engine cylinder, and having itsupper portion 11 preferably enlarged and spherical to form a bearing.

The latter is provided with a transversely disposed tapered bore or seat12 disposed at an incline to the body corresponding to the degree ofinclination of the cylinder wall in which the nipple 10 is intended tobe inserted. Rotatable in the seat 12 is a tapering plug 14 having oneend preferably enlarged as at 15 to form a head. Near its other end theplug is of reduced diameter Specification of Letters Patent.

Patented May 18, 1920.

Serial No. 329,315.

forming an annular shoulder 16 and a stem portion 17 The head 15 of theplug has. a radial hole 19 in which is tightly forced an arm 20terminating in a semispherical cup 22 and disposed laterally at rightangles to the plug. The parts 15 and 20 may be integral.

Extending centrally of the body is a longitudinal passage 24 adapted toregister with an inclined port 25 in the plug, which in turn opens intoan axial passage 26 in the latter and extends into the arm, whence acentral passage 28 in the arm opens into the receptacle 22.

Adjacent the outer end of the stem 17 is an annular groove 30 formingresultant shoulders 31 and 32. A circular plate 34 is provided with adiametrical slot 35 having a curved end 36, the whole forming a horseshoe washer with arm portions 37. The neck formed by the groove 30 onthe stem is a sliding fit in the slot 35 of the plate 34 and is adaptedto normally seat itself in the portion 36 of the slot. For the purposeof locking this plate against escape caused by motor and othervibration, a cap is provided comprising, as shown in Fig. 7, a disk 39with a central orifice 40 and a lateral flange 41 having a rounded edge42. This cap is loosely mounted on the stem with the body 39 restingagainst the plate 34, and its wall 41 surrounding the latter and spacedslightly therefrom. In this instance a washer or cap 43 is loose on thestem adjacent the shoulder 16 and head 11. A hel ical spring 45surrounds the stem with its ends 47 and 48 engaging the members 40 and43.

The operation of my primer is as follows. In priming, the liquid ispoured in the cup 22 in the position shown in Fig. 1, and descendsthrough passages 28, 26, 25 and 24. The handle is then depressed to theposition shown in Fig. 2 so that dirt is not accessible to the cup, andthe port 25 is closed by being out of registration with the passage 24.To disassemble the parts the locking cap 40 is manually pressed inwardlyalong the stem portion 17 against the pressure of the spring, and assoon as the flange 41 reaches a point slightly behind the plate 34 thelatter is pushed laterally out of engagement with the plug by pressureof the finger nail against the ends of the arms 37. All the parts of mydevice are then unlocked for disassemblage. It will be noted thatassemblage and disassemblage may be effected Without tools.

It will be noted that by virtue of the inclined relation of plug 14relatively to body or shank 9, the former is horizontal when the body ismounted in an inclined cylinder 50 at right angles thereto. Thereforeboth the handle and the cup are in a vertical plane.

I claim 1. In a priming device, the combination with an inclinedcylinder, of a body mounted in the cylinder at right angles thereto, a

plug valve rotatably mounted in the body and disposed at an inclinationto the body,

an arm upon the plug at right angles there- I to, anda cup upon the arm,said body, plug valve, and arm being provided With liquid passagescommunicating with the cup.

2. In a priming device, a body, a plug rotatably mounted, in the body,an operating arm on one end of the plug, said plug being provided nearits opposite end With an annular groove, a plate provided With adiametrical marginal slot slidably embracing the plug in the groove, adisk slidably mounted on the plug contiguous to the plate, a flange onthe disk surrounding the plate, a Washer on the plug adjacent the body,and a spring engaging the disk and Washer.

In testimony whereof I have affixed my signature.

PATRICK J. MoINTYR-E.

